Here is a ring featuring a petrified wood cabochon. The stone was part of a set of book ends I purchased 40 years ago. the colors and patterns in this material are stunning,it is rare to find this quality and I am fortunate to have this petrified wood to use. This stone is all natural with no enhancements. The ring is made from my oak twig design. I find twigs on my property that I reproduce in exact detail. This makes each ring unique as no two twig patterns are the same. The ring is sterling silver. The stone is 24mm by 15mm. The band averages 3mm in diameter. You can order this ring in any size wanted,just email me with the size needed.